12620774786810 has 16 divisors (see below), whose sum is σ = 22719965488776. Its totient is φ = 5047738609728.

The previous prime is 12620774786777. The next prime is 12620774786833. The reversal of 12620774786810 is 1868747702621.

12620774786810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11712007242961 + 908767543849 = 3422281^2 + 953293^2 .

It is a super-2 number, since 2×12620774786810² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12620774786810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71320337 + ... + 71497076.

Almost surely, 2^{12620774786810} is an apocalyptic number.

12620774786810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12620774786810 is a deficient number, since it is larger than the sum of its proper divisors (10099190701966).

12620774786810 is a wasteful number, since it uses less digits than its factorization.

12620774786810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142826257.

The product of its (nonzero) digits is 12644352, while the sum is 59.

The spelling of 12620774786810 in words is "twelve trillion, six hundred twenty billion, seven hundred seventy-four million, seven hundred eighty-six thousand, eight hundred ten".